WATCH: Take a lesson in quantum physics from Zoe Saldana, Stephen Hawking, and Simon Pegg's cat

Never work with children or animals, the old adage says, although it’s not very often that the old wives offering such advice reckon on cats disappearing into the quantum realm. That’s the pickle actress Zoe Saldana finds herself in when the curious feline she’s babysitting for her Star Trek co-star Simon Pegg goes missing. Who else to turn to for advice by Stephen Hawking, the world’s most famous physicist.

That’s the premise of a new science video directed by Alex Winter, better known as the half of Bill and Ted that isn’t Keanu Reeves – although he did also manage to get his former time-travelling partner to cameo in the video, alongside Paul Rudd and John Cho, who each offer their own advice on how to rescue the cat, aptly named Schroedinger.

Titled Quantum is Calling, the video is the second in a series of science-themed comedy sketches designed to educate and entertain, with the previous edition featuring Paul Rudd going head to head with Stephen Hawking over a game of Quantum Chess. With plenty of visual and audio nods to fans of science and science fiction, Quantum is Calling might be the most entertaining physics lesson you learn today: